public class E {
	public static void main(String args[])
	{
		Fish redFish = new Fish();
		System.out.println(redFish.weight);
		Lake lake = new Lake();
		lake.setFish(redFish);
		lake.foodFish(120);
		System.out.println(redFish.weight);
		System.out.println(lake.fish.weight);
	}
}
